Abstract: Techniques are provided for distributing performance measurement data to one or more delegating agents. A method includes one or more devices having connectivity to a network sending an identification and configuration request to one or more delegating agents to initiate a performance measurement session in the network, receiving session configuration data associated with the performance measurement session from the one or more delegating agents, and configuring the performance measurement session based on the session configuration data. The method further includes the one or more devices receiving performance measurement data from a reflector in the network during the performance measurement session and distributing the performance measurement data to the one or more delegating agents configured to manage or process the performance measurement data.

Abstract: A method to obtain network performance measurements without having to deploy a reflector device in a network. The method involves generating at a first device, a first frame according to a feature of a networking protocol, wherein the first frame is generated by inserting timestamp information indicating a departure time of the first frame into each of a first field and a second field of a header of the first frame. The first device sends the first frame to a network entity in a network. The first frame is configured to cause the network entity to send, in reply to the first frame, a second frame according to the feature of the networking protocol. The second frame includes timestamp information in either a first field or a second field of a header of the second frame. The first device receives the second frame and derives a network performance metric.

Abstract: A method for controlling driving fluid breakthrough caused by zones of pressure communication, i.e., a matrix bypass event (“MBE”) or a wormhole, having a void space and possibly areas of enhanced permeability (a halo region) associated with the void space, within a subterranean formation arising from use of a driving fluid in reservoirs where heavy/viscous oil is being produced. In embodiments, the method includes injection of a slurry of a cementitious material into the zone, which upon setting, provides a cement plug in the void space that reduces the pressure communication and flow of driving fluid within the zone. Another step injects a gel precursor within the zone, which upon setting, produces a gel plug that also reduces pressure communication and driving fluid flow through the halo region of the zone.

Abstract: The invention is directed to a method for controlling driving fluid breakthrough caused by zones of pressure communication, i.e., a matrix bypass event (“MBE”) or a wormhole, having a void space and possibly areas of enhanced permeability (a halo region) associated with the void space, within a subterranean formation arising from use of a driving fluid in reservoirs where heavy/viscous oil is being produced. In particular, the method is directed to remediation of pressure communication between injection and production wells used to produce heavy/viscous oil by way of a waterflood operation combined with a cold production method. Direct or rapid communication of water between the injector and producer wells makes the waterflood recovery process virtually ineffective and limits the production of oil from the reservoir.

Abstract: A method of blocking a high permeability channel in communication with a wellbore, including the steps of introducing an amount of an unreinforced gel into the high permeability channel via the wellbore and introducing an amount of a reinforced gel comprising an amount of a reinforcing material into the high permeability channel via the wellbore. The method may further include the step, after introducing the unreinforced gel and the reinforced gel into the high permeability channel, of introducing an amount of a chaser fluid into the wellbore.

Abstract: A method of blocking a high permeability channel in communication with a wellbore, including the steps of introducing an amount of an unreinforced gel into the high permeability channel via the wellbore and introducing an amount of a reinforced gel comprising an amount of a reinforcing material into the high permeability channel via the wellbore. The method may further include the step, after introducing the unreinforced gel and the reinforced gel into the high permeability channel, of introducing an amount of a chaser fluid into the wellbore.

Abstract: A method is provided for blocking high permeability regions in subterranean geological formations, using a reinforced swelling clay gel. A reinforced clay slurry is prepared by mixing swelling clay, such as bentonite, an aqueous solution containing the salt of certain cations, which inhibit clay swelling, and a reinforcing agent. The cations K+, Ca2+, Mg2+, Cs2+, Fe2+, Al3+ and NR4+, where each R can independently be H, CH3, C6H5, or CH2CH3, and combinations thereof, among others, are clay swelling inhibitors. The reinforcing agent is non-swelling particles, including, without limitation, particles of produced sand, silica sand, sandy or silty soil, crushed rock, minerals, mine tailings, and combinations thereof. The reinforced clay slurry is introduced into a geological formation, where it preferentially enters high permeability regions.

Abstract: A method for evaluating rheological properties of certain non-Newtonian liquids employs the principle of a multiple forced flow of a single sample of the liquid through an orifice, thus effecting a significant elongation of the sample. The liquid is forced through the orifice by means of a piston. Preferably, the orifice is built into the piston so that the liquid remains stationary during the piston advance. The timing and rate of the sequential strokes of the piston are controlled and the differential pressure across the orifice is measured. A function between the timing of the piston strokes, the stroke rate and the differential pressure can be determined. The function has been found to represent a relatively reliable rheological "signature" of the tested liquid.